Blast lamp



' Mar. 3, 1925.

E. C. FREELANDv BLAST LAMP Filed Jan. 50 192s nvc/wtoz E CTEeeZaU Patented Mar. 3, 1925.

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EMILE CHARROPPIN FREELAND, OF BATON ROUGE, LOUISIANA.

BLAST LAMP.

Application filed January 30, 1923. Serial No. 615,929.

To all whom it may concern: 7

Be it known that I, EMILE C. Funumun, a citizen of the United States, residing at Baton Rouge, in the parish of E. Baton Rouge, Louisiana, have invented certain new and useful Improvements in Blast Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a liquidfuel burner and more especially to a blast-lamp, andhas for one of its objects to provide a burner or lamp of this character which is especially adapted to use alcohol or other fuels of different viscosities.

A further object of the invention is to provide a lamp adapted to produce a flame, the size and intensity of which may be altered at will, according to the purpose for which the lamp is being employed.

A further object of'the invention is to provide a lamp or burner which may be easily and quickly taken apart for cleaning, and which has no inaccessible parts where foreign matter may accumulate.

A still further object of the invention is to provide a lamp of the class described which willbe simple in construction, comparatively inexpensive to manufacture, and more efficient in use than those which have been heretofore proposed.

With the above and other objects in view, which will appear as the description proceeds, the invention consists in the novel details of construction and combinations of partsmore fully hereinafter disclosed and particularly pointed out in the appended claims.

Referring to the accompanying drawings forming: a part of this specification, in which the figure is a central vertical sectional view of a lamp or burner made in accordance with the present invention, the numeral 1 indicates the base of the lamp whichis provided with a. plurality of supporting legs 2 and with acentral bore 3, threaded to receive the needleor other valve 4, which may be made fluid-tight by means of a suitable gland or stuffing box 5. The said base 1 is further provided with the transverse bore or passage 6, which communicates with the supply pipe 7, which may to threadedinto the said base 1, as indicated, and which leads from a suitable; tank or other source of fuelsupply, notshown;

The upper portion of the base 1 is counter-bored co-axially with the bore 3, as indicated at 9, and the said counter-bore is preferably threaded to receivethe lower end of a pipe or casing 10, the upper-end of which is likewise threaded to receive the extension or burner tipll.

Mounted within the said pipe or column 10 in co-axial relation thereto is a rod 12, provided at its lower end with a detachable head 13, which head is provided with. a plurality of perforations 14 for permitting fuel to pass from the bore '3 to the interioryof the'said pipe or column 10. Surrounding the said rod 12an-d restingupon the head 13 is a plurality of sheet metal or other discs 15, each provided with a central hole adapted to engage the rod 12, and the said discs are further provided with a plurality 'ofperforations 16, through which the fuel is adapted to find its way. The said discs substantially completely fill the interior of the pipe or columnlO, and they are placed therein in such a manner that their perforations do not unnecessarily register, thereby affording tortuous paths for the passage of the fuel, whereby the latter may be strained or filtered and any foreign substances con.- tained therein extracted therefrom, The

said discs and tortuous passages further assist in'the vaporization of the fuel, as will presently appear.

The rod 12 removably carries at its upper end a substantially hemisphericalhollow member 17, provided with the ports or passages 18, leading from the relatively small chamber 19 above the discs 15, to the interior recessor chamber 20, as will be clear from the drawing. A disc or plate 21 provided with a central opening or passage 22 is removably held between the shoulder 23 and the top surface of the column 10, as will be readily apparent, and together with the hemi-spherical member 17 constitutes a carbureting device.

The upper portion or burner tip 11 is providedwith a plurality ofholes or apertures 24, through which air may be admitted to the interiorof the said tip 11, and'the said holes or apertures may be controlled by means of a rotatable sleeve 25, provided with companion holes or apertures 26 adaptedto be moved intoand out of register with the said holes 24 in the usual and well known manner.

Immediately above the said air holes or ports 24 the said tip 11 is provided with a plurality of supporting pins or lugs 27, upon which rests a wire gauze disc 28, through which the fuel mixture may pass before being ignited, and which will prevent the flame from traveling backwards into the chambers 19 and 20, as will be readily apparent.

Surrounding the pipe or column 10, adjacent its lower portion, and preferably resting upon the top surface of'the base 1, is an annular trough or receptacle 30, which is adapted to be filled with liquid fuel, which is ignited therein for the purpose of initially heating the burner to produce the vaporization of the fuel.

In use, fuel being supplied to the pipe 7 from the source of supply not shown, which source is preferably located on a level above the burner tip, the said fuel will pass through the duct 6 around the valve 4: and into the bore 8, from whence it will find its way up through the tortuous passages provided by the perforations of the discs 15, substantially filling said passages and entering the chamber 19.

Additional liquid fuel being placed in the receptacle 30 and ignited, the heat therefrom will be transferred through the metal column 10 and the discs 15 to the fuel in the said tortuous passages, thereby vaporizing the same. The vaporized fuel will pass from the chamber 19 through the ducts or passages 18 into the hemi-spherical chamber 20, from whence it will escape through the axial aperture 22 in the form of a jet or stream, past the air openings 24. Air which is passing through the said openings will here be mixed with the said vaporized fuel and the mixture will pass through the wire gauze 28 to the upper end of the burner tip 11, where it may be ignited.

The size and intensity of the flame thus produced may be readily controlled by manipulating the valve 4: and the air controlling sleeve 25, aswill be readily understood, by reason of which control, fuels of different viscosities may be readily employed in the present lamp. Furthermore, due to the tortuous filtering passages provided by the multiplicity of perforated openings within the column 10, any foreign substance which may be present in the said fuel will be strained or filtered therefrom, and not'permitted o find its way into the relatively small ducts or passages 18 and 22, thereby preventing a clogging of the burner.

The perforated plates 15 furthermore serve as excellent conductors of the heat produced either by the combustion of fuel in the receptacle or trough 30 or bythe flame issuing from the'burner tip 11, presenting a large the head 13 of which the said discs rest, or

the entire pipe or column 10 may be unscrewed from the base 1, and the disc assembly slipped out of the bottom without dis turbing the tip 11 or plate 21. The discs themselves may be readily removed or replaced on the said rod by removing the hemispherical carbureting member 17 or by removing the head 13, as will be readily apparent.

While one form of the invention has been illustrated and described it is obvious that those skilled in the art may vary the details of construction as well as the arrangement of parts without departing from the spirit of the invention, and therefore it is not wished to be limited to the above disclosure except as may be required by the accompanying claims.

What is claimed is:

1. A burner of the class describedcomprising a base member provided with a recess and a valve controlled fuel passage discharging into said recess; a tubular column, one end of which is threaded into said recess, through which fuel is adapted to pass; a rod extending axially of said column, provided with a perforated base member resting on the bottom of said recess; a plurality of superposed perforated discs resting on said base member and surrounding said rod, their surfaces being in intimate contact with each other and with the Walls of said column, said perforations forming tortuous passages through which said fuel must pass; a hollow head member carried by the upper end of said rod, constituting a carbureting jet chamber, and serving to retain said discs in position about said rod; and means for supplying fuel to said base member.

2. A burner of the class described comprising a base member provided with a recess and a valve controlled fuel passage discharging into said recess; a tubular column, one end of which is threaded into said recess, through which fuel is adapted to pass; a rod extending axially of said column, provided with a perforated base member resting on the bottom of said recess; a plurality of superposed perforated discs resting on said base member and surrounding said rod, their surfaces being in intimate contact with each other and with the Walls of said column, said end of said column, closing said hollow head 10 perforations forming tortuous passages member, said disc being provided with a centhrough which said fuel must pass; a hollow tral aperture constituting an outlet from hemispherical head member provided with said jet chamber; a burner tip secured to the fuel passages extending through the Walls upper end of said column, retaining said disc thereof, carried by the upper end of said in place; and means for supplying fuel to 15 rod, constituting a carbureting jet chamber, said base member.

and serving to retain said discs in position about said rod; a disc resting on the upper EMILE GHARROPPIN FREELAND. 

